Improved vise



To allpcrsons toy whom these presents may, come :l

. j The twoj marked A being to slide reetilinearly withintheothelyv shconnnsonyfor no sToN, MASSACHUSETTS.

Letters Pa-tentNo. 104,437, dated .Tune 2l, 187 0.1

The i Schedule referred 'to in these Letters Patent and making Part 0f the am Beit known that I, J AeonEDsoN, of Boston, of

` the county of Suifolk `a'ndstfate ofMassachusetts,

have `madela new and usefnlfinvention having reference `to Bench-Vises and I `do 'hereby declare the;

same to bc fully describedin the-following specificationandurepresentcd in the` accompanying drawing,l

of whichj v 'Figurel is a side elevation.

. Figure 2, a longitudinal section; and

Figure"`3,'a transverse' section of a vise provided withlmyinvention. `V Figure 4 is a side view off-its spindle and the male screw thereof. v

'Figure 5 is an outer end Vview of the jaw-carrier for supporting the spindle. J

Figure 6 is an under-side view `of the other or sec- `tional screw jaw-carrier.

' Figure 7 is a horizontal sect-ionof one of the jaws.

or that 'marked B, which, when the vise is in use, is to supposedto be bolted down to a bench-dr table.

Each jaw-'carrier is provided with one of two jaws,

.i C D, formed,` and to` project fron1.it,inmanner as rep resented.

'.lhe movable 'jawcarrierA rests on ledgesor iianges, a a, extended inward from the opposite sides of the jaw-carrier, and provided, on the inner surface of such 'arch ortop, withthe section Eof along female screw, `which, when the jawfearrier is founded in a mold, may

at t-hesamc time be made by casting the metal against a male-screwl chill of the requisitexform, 4arrangedin and making part of such mold.l

. There is disposed `within-the jaw-carrier Aa spin- "3 dieter shaft, F, having upon ita male screw G to work orfengage with the sectional female screw.

The male screw G I make with aslight taper in one or in opposite directions' fromitsrmiddle or-'otheripart a of it, in order 'that it may 'take `in `or -adapt itself to i the female-screwsectiontogood or better advantage,

as either or both may'bccome worn, as themalc screw,

. l bythe leverage exerted byits jaw, will bc borne up to l L the female screw whilethe jaws are in the act of grasping an object.v The screwG extends intoa box or reservoir, r, formed in its `jaw'earrier, lthe said reser- 1 voir beingtoeontain oil, within which the screw is to x ,wallowwhile in operation, and thus keep lubricated..-

'.lhis reservoir may be supplied -with oil when the `vise'is closedlby pouring such oil through an opening,

s, leadingout of one side'lof and through a hood, t,

brmed in. thetap ofthe other or' upper jaw-carrier.

This hood serves to` prevent chips,or extraneous l l. i zmatter, from fallingl through the passage s into the oil u reservoir.

` The spindle at its outer end terminates in a sphcr etw-carriers are shown at A and B, thatA ical or other proper shaped knob, 6,-11aving a hole made diametrically through it at right angles with the `axis of the spindle.

The said hole isto receive a handle, H,.which extends through thc knobs, and is kept nx 'connect-ion therewith 'by two elastic rings, c-c, of India rubber,

which are sprung into grooves 'd d'cnt in and around Vthe handle ucar its extremities.

v These elastic rings serve to p'evcnt the handle, while the spindle is' being revolved, from becoming disengaged therefrom and from falling through the knoband bringing up 'against it with a noise, such as takes place-when the stops are inelastic, or of iron, as

ordinarily made and applied tofthe handle. Further'- more, the elastic ring is not iiableto doA injury to or pinch, between it and the knob, the hand of a person during a fall of the handle in the knob, as somtimes v takes place 4when the handle is provided with a metallic' head. Again, the elastic ring, applied in manner described, renders, it easy to effect the removal o f the handle from the spindle, wheneverit may be desirable -so todo, for convenience .of packing the handle and otherparts of the vise for transportation, or otherwise.

nal, e,to rest in abearing, j, formed in the jaw-carrier A.` 'Near its front end the spindle has a conical shoulf der, g, and passcsthrough a circular hole or' bearing,

h, formed in such jawcariier. A channel or groove, 1l, is formed around the spindle and in theV conical shonlderg thereof. j

The groove is to hohl plumbago, or other material of like nature, used to. diminish ii'iction. Over this groove there isan oil-passage, c, made in the jawcarrier. vThrough this passage oil may be supplied to thc front bearing aud journal of thcspindlc.

Each jaw I pro'vide'with two,or any other suitable number of recesses o`r cavities, m, of proper form to rcceive studs projectingvom' a face plate, such as is usually employed with thc jaw of a vise, or to receive and hold elastic tubes or mouths, n, of India rubber,

to contract and hold in place the said studs, and as a consequence the face plate to thejaw.

. In the process of founding each of thejaws and its ear rier, the inner or holding face of each jaw should be cast against a chill o r chill-plate, provided with projections necessary to produce the'reqnisitc indentations of the face of the jaw. A jaw so made is far preferable to an unchilled one scored in theusnal manner on its holding face for the chilled jaw, by being harder on its face, will, whilein usc, retain its normal condition, or, in other words, its teeth will remain intact much longer than will be 'the casewith' those of an unchllcd jaw under like circumstances. The shaded part p in fig. 7 exhibits the hardened orchillcd part of the jaw.`

While an article is being compressed between and by At-itsrear cnd the spindle is 'provided with a jourl the `iaws, the male screw cflthespindle will beforced The above mode of constructing a vise enables one y of much utility to be produced at little expense, it being particularly advantageous to joiners, artieers, 0r

farmers, who may need a good article at a moderate price. y

By revolving the spindle the male screw will be caused to turn around in and be moved endwise by the sec-tional female screw, whereby the jaw-carrier, in and by which the spindle is supported, will be moved endwise with and by such spindle. In this way the movable jawl may be caused either toapproaelil 01 recede from the stationary jaw.

What I claim as my inventionin t-he above described vise, may be stated as follows:

1. The jaw-carrier B, as constructed, witba femalescrew section, E, cast in one piece with the rest of the carrier, and formed and chill-hardened by being formed against a screw chillplate', and with supporting danges a a, in combination with the jaw-earrier A, as formed with shoulders, or equivalents, to rest on such anges and to operate withvthe said carrierB andthe screw-spindle, as specified.

2. The combination of the elastic rings c cwith the handle H, (made with grooves d d to receive and hold such'rings,) and screw-spindle lf,substantially as set forth.

`3. The combination of the jaw-carriers A and B, screw-spindle F, and oil-reservoir r, the latter being arranged to receive the screw of the spindle, in manneraud for the purpose as described.

4. The combination and arrangement ot' the hood t, 4

the purpose set forth.

.Y JACOB EDSON.

Witnesses:

VR. H. EDDY, J. R. Ssow. 

